Despite the fact that there's zero evidence that the Arizona tragedy is somehow related to political speech, that hasn't stopped people from talking about the dangers of extreme rhetoric and whatnot.

And some are going further.

The Democrats' third most powerful House member Jim Clyburn (South Carolina) told the Post & Courier that it's time for the country to "rethink" the parameters of free speech, while suggesting that some currently accepted speech should be in the category of yelling fire in a crowded theater.

Meanwhile, Congressman Robert Brady (via Mike Riggs) also a Democrat, is pushing for legislation that would ban the use of violent rifle-sights imagery in advertising.